Patents by Inventor Weenaratt Leelaprachakul

Weenaratt Leelaprachakul has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Pipe insertion apparatus
    Patent number: D489964
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: May 18, 2004
    Inventor: Weenaratt Leelaprachakul
  • Portion of a pipe
    Patent number: D603941
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: November 10, 2009
    Inventor: Weenaratt Leelaprachakul